:root {
  --green: #509e2f;
  --green-dark: #173f24;
  --green-soft: #e8f2e3;
  --gold: #c7a45a;
  --silver: #d8dde0;
  --ink: #0d1110;
  --muted: #64706a;
  --line: rgba(13, 17, 16, 0.12);
  --surface-soft: #f6f8f4;
  --shadow: 0 28px 70px rgba(12, 28, 18, 0.14);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: radial-gradient(circle at 18% 18%, rgba(80, 158, 47, 0.16), transparent 28rem), linear-gradient(135deg, #fff 0%, #f7f8f5 52%, #eef3eb 100%);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
}
button { font: inherit; }
.page-shell { min-height: 100vh; overflow: hidden; }
.site-header { display: flex; justify-content: center; padding: clamp(1rem, 3vw, 2rem) 1.25rem 0; }
.logo-link { display: inline-flex; align-items: center; justify-content: center; }
.logo-link:focus-visible, .brand-button:focus-visible { outline: 3px solid var(--gold); outline-offset: 4px; }
.da-logo { width: clamp(112px, 13vw, 158px); height: auto; display: block; }
main { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }

.hero {
  min-height: clamp(320px, 44vh, 440px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.74fr);
  gap: clamp(1.5rem, 5vw, 4rem);
  align-items: center;
  padding: clamp(1.6rem, 4vw, 3rem) 0 clamp(1.8rem, 4vw, 3rem);
}
.hero-copy { max-width: 680px; }
.eyebrow { margin: 0 0 0.9rem; color: var(--green-dark); font-size: 0.78rem; font-weight: 800; letter-spacing: 0.14em; text-transform: uppercase; }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 13ch; margin-bottom: 1.25rem; font-size: clamp(2.8rem, 6.2vw, 5.6rem); line-height: 0.94; }
.hero-text { max-width: 640px; margin-bottom: 0; color: #334039; font-size: clamp(1.05rem, 1.6vw, 1.28rem); line-height: 1.7; }
.hero-panel { position: relative; min-height: 315px; border: 1px solid var(--line); border-radius: 8px; background: linear-gradient(145deg, rgba(23, 63, 36, 0.96), rgba(13, 17, 16, 0.94)), var(--green-dark); box-shadow: var(--shadow); overflow: hidden; }
.hero-panel::before { content: ""; position: absolute; inset: 22px; border: 1px solid rgba(216, 221, 224, 0.18); border-radius: 6px; }
.hero-panel::after { content: ""; position: absolute; width: 220px; height: 220px; right: -70px; top: -70px; border: 1px solid rgba(199, 164, 90, 0.6); border-radius: 50%; }
.signal-grid { position: absolute; inset: 36px; display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: 1fr; gap: 11px; opacity: 0.9; }
.signal-grid span { border: 1px solid rgba(255, 255, 255, 0.09); border-radius: 6px; background: rgba(255, 255, 255, 0.035); }
.signal-grid span:nth-child(2), .signal-grid span:nth-child(5), .signal-grid span:nth-child(11) { background: rgba(80, 158, 47, 0.34); border-color: rgba(80, 158, 47, 0.62); }
.signal-grid span:nth-child(8) { background: rgba(199, 164, 90, 0.32); border-color: rgba(199, 164, 90, 0.7); }
.capability-stack { position: absolute; inset: auto 36px 36px; display: grid; gap: 0.55rem; }
.capability-stack span { display: flex; justify-content: space-between; align-items: center; min-height: 36px; padding: 0 1rem; color: #fff; border: 1px solid rgba(255, 255, 255, 0.12); border-radius: 6px; background: rgba(255, 255, 255, 0.06); font-size: 0.86rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; }
.capability-stack span::after { content: ""; width: 42px; height: 2px; background: var(--gold); }

.brand-lab { padding: clamp(1.7rem, 4vw, 3rem) 0 clamp(3rem, 8vw, 5.5rem); }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 1.5rem; margin-bottom: 1.4rem; }
.section-heading h2 { max-width: 690px; margin-bottom: 0; font-size: clamp(2rem, 5vw, 4.7rem); line-height: 1; }
.brand-interface { display: grid; grid-template-columns: 275px minmax(0, 1fr); gap: 1rem; align-items: stretch; }
.brand-list { display: grid; gap: 0.65rem; align-content: start; padding: 0; }
.brand-button { position: relative; width: 100%; min-height: 64px; padding: 0 1.1rem; color: var(--ink); border: 1px solid var(--line); border-radius: 8px; background: rgba(255, 255, 255, 0.68); text-align: left; cursor: pointer; transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, color 180ms ease; }
.brand-button::before { content: ""; position: absolute; left: 0; top: 12px; bottom: 12px; width: 4px; border-radius: 0 4px 4px 0; background: transparent; transition: background 180ms ease; }
.brand-button span { display: block; font-weight: 800; letter-spacing: 0.02em; text-transform: uppercase; }
.brand-button:hover { transform: translateX(4px); border-color: rgba(80, 158, 47, 0.46); }
.brand-button.is-active { color: #fff; border-color: var(--green-dark); background: var(--green-dark); }
.brand-button.is-active::before { background: var(--gold); }
.brand-detail { display: grid; grid-template-columns: minmax(240px, 0.72fr) minmax(0, 1fr); min-height: 560px; border: 1px solid var(--line); border-radius: 8px; background: rgba(255, 255, 255, 0.82); box-shadow: var(--shadow); overflow: hidden; }
.detail-media { position: relative; display: flex; align-items: center; justify-content: center; padding: clamp(1rem, 3vw, 2rem); background: linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(232, 242, 227, 0.76)), var(--surface-soft); border-right: 1px solid var(--line); }
.logo-stage { width: min(90%, 430px); aspect-ratio: 16 / 9; display: grid; place-items: center; transition: transform 260ms ease; }
.logo-stage.is-spinning { transform: rotate(3deg) scale(1.025); }
.logo-stage img { max-width: 100%; max-height: 100%; object-fit: contain; filter: drop-shadow(0 14px 18px rgba(10, 22, 14, 0.1)); }
.detail-copy { padding: clamp(1.5rem, 4vw, 3.3rem); }
.detail-kicker { display: inline-flex; margin-bottom: 0.7rem; color: var(--green-dark); font-size: 0.76rem; font-weight: 800; letter-spacing: 0.14em; text-transform: uppercase; }
.detail-copy h3 { margin-bottom: 0.8rem; font-size: clamp(2rem, 4vw, 4.25rem); line-height: 0.98; }
.short-description { margin-bottom: 1.35rem; color: #26342d; font-size: clamp(1.02rem, 1.4vw, 1.18rem); font-weight: 600; line-height: 1.65; }
.detail-body { display: grid; gap: 0.9rem; color: #4b5851; font-size: 0.98rem; line-height: 1.72; }
.detail-body p { margin-bottom: 0; }
.closing-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; margin-bottom: 2rem; border: 1px solid var(--line); border-radius: 8px; background: var(--line); overflow: hidden; }
.closing-strip p { min-height: 74px; display: grid; place-items: center; margin: 0; padding: 0.75rem; background: rgba(255, 255, 255, 0.72); color: var(--green-dark); font-size: 0.78rem; font-weight: 800; letter-spacing: 0.1em; text-align: center; text-transform: uppercase; }

@media (max-width: 920px) {
  .hero { grid-template-columns: 1fr; min-height: auto; }
  h1 { max-width: 12ch; }
  .hero-panel { min-height: 300px; }
  .brand-interface { grid-template-columns: 1fr; }
  .brand-list { grid-template-columns: repeat(3, minmax(170px, 1fr)); overflow-x: auto; padding-bottom: 0.4rem; scroll-snap-type: x mandatory; }
  .brand-button { scroll-snap-align: start; }
  .brand-detail { grid-template-columns: 1fr; }
  .detail-media { min-height: 330px; border-right: 0; border-bottom: 1px solid var(--line); }
  .logo-stage { width: min(84vw, 360px); }
}

@media (max-width: 640px) {
  main { width: min(100% - 22px, 1180px); }
  .site-header { padding-top: 1rem; }
  .da-logo { width: 104px; }
  .hero { gap: 1.5rem; padding-top: 1.8rem; }
  h1 { font-size: clamp(2.85rem, 15vw, 4.35rem); }
  .hero-text { font-size: 1rem; }
  .hero-panel { min-height: 280px; }
  .signal-grid { inset: 22px; gap: 8px; }
  .capability-stack { inset: auto 22px 22px; }
  .capability-stack span { min-height: 36px; font-size: 0.72rem; }
  .section-heading { display: block; }
  .section-heading h2 { font-size: clamp(2.25rem, 12vw, 3.6rem); }
  .brand-list { grid-template-columns: repeat(3, minmax(148px, 1fr)); }
  .brand-button { min-height: 56px; padding: 0 0.85rem; }
  .brand-button span { font-size: 0.83rem; }
  .brand-detail { min-height: 0; }
  .detail-media { min-height: 278px; }
  .detail-copy { padding: 1.25rem; }
  .detail-copy h3 { font-size: clamp(2.2rem, 12vw, 3.25rem); }
  .closing-strip { grid-template-columns: 1fr 1fr; }
  .closing-strip p { min-height: 62px; font-size: 0.68rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; }
}